Loom for weaving with pile wires



Se t.- 13, 1927. 1,542,112

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Patented Sept. 13, 1927.

UNITED STATES 1,642,112 PATENT OFFICE.

JOHANN KE PPELER, F IBIRKESDORF, GERMANY.

LOOM FOB WEAVING WITH PILE WIRES.

Application filed April 10, 1926, Serial No. 101,096, and in GermanyApril 15, 1925.

In the known looms for weaving with pile wires, the motion of the pilewires is effected by a commonloom drive designed to actuate all movableparts of the loom.

Owing to the fact that considerable rea loom of the type stated whichdoes no longer possess the said disadvantage, this ob'ect being attainedby providing a special drlve for the wires which operates the wireseither alone or in conjunction with the loom drive. In the last-saidcase the special wire drive and the loom drive act together for startingthe laying in and the withdrawing of the pile wires, while the wires aremoved into their end positions by the loom drive alone. In case ofelectric driving, there may be used in accordance with the invention forthe operation of the wires either a constantly running electromotor oran'electromotor which is connected with the current line by means of a.drum switch during the starting movements and cut off from the currentline during the intervals. p Another object of the invention is toprovide a clutch controlled by the loom drive and designedto couple thespecial wire drive with the wire actuating mechanism at suitable timesfor starting the wire movements.

If an independent electric drive is used for the pile wires, the wiremotion is automatically stopped in the end positions of, the wires bymeans of a brake magnet.

In the drawings:

Fig. 1 is a front elevation of a loom attachment according to theinvention;

Fig. 2 is a similar elevation of a modified form of the attachment;

Fig. 3 is a diagram of one trio connections and 1 v Fig. 4 is a diagramof another system, of electric connections used in the attachmentaccording to Fig. 1; 1

Fig. 5 is a diagram of the electric connections used in the attachmentaccording to Fig. 2. The loom and the wire mechanism are not shownbecause same may be of any suitable system of elecwell-knownconstruction. The loom is supposed to be arranged at the right hand sideReferring now to the drawings, and more particularly toFig. 1, 6designates one of the guide rails on which the slide 7 carrying the pilewires is moved to and fro by means of a rope 8 passing over idlers 9 andover a driving pulley 10. 11 is an'electromotor designed to act on thepulley 10 in conjunction with, the'loom drive for starting the laying inand the withdrawing of the wires, while the latter are moved into theirend positions by the loom drive alone. The shaft of the motor 11carries'a gear wheel 12 which meshes with a gear wheel 13 mounted forfree rotation on the main shaft 14. The wheel 13 has rigidly connectedwith it a clutch member 15 adapted to be engaged and coupled with theshaft 14 by another clutch member 16which is shiftable longitudinally onthe shaft 14. Thus, when the clutch 15, 16 is thrown in the motor 11.will drive the shaft 14. The shaft 14 carries a curved disc 17 the camgroove of which is engaged by a pin 18 fixed to a toothed sector 19which is mounted for swinging motion at 20. The sector '19 meshes with atoothed wheel 21 which is fixed on the shaft 22 of the rope pulley 10.When the shaft 14 is rotating its disc 17 will impart to the sector 19,wheel 21 and pulley 10 partial rotations in opposite directions. Thesepartial rotations are transmitted by means of the rope 8 to the pilewires, laying the same in during the rotations of the pulley 10 in onedirection and withdrawing them during the rotations of the pulley 10 inthe opposite direction. 23 is the shaft of the loom drive which, whenthe loom is in operation, constantly drives the shaft 14 by means ofgear wheels 24, 25. The shaft 23 carries a.

curved disc 26 which is designed to actuate the movable clutch member 16through the intermediary of levers 27, 27, 27 and con. necting rods 28,28. The cam groove of the curved disk 26 is of such a configurationgaged again after the wires have started their respective movements. Itwill therefore be understood that the auxiliary motor 11 aids the loomdrive in starting the laying in and the withdrawing of the wires.

During the operation of the loom, the

electromotor 11 may either be constantly running or it may be cut in andout at the proper times. In the first case the system of electricconnections is as shown in Fig. 3, in which 29 is the main currentfeeding line, while 30 are branch conduits supplying the current to themotor 11 and 31 are conduits designed to supply current to the loomdriving motor (not shown). The motors are cut in and out by a switch 32.in the second case the shaft23 of the loom drive has operativelyconnected with it a drum switch 33 which is arranged in the branchconduits 30 for themotor 11, as shown in Fig. 4. This drum switch 33 isprovided with two sets of contacts 3 1i and 35,. one serving to cut inthe motor 11 at the beginning of the laying in and the other serving tocut in themotor 11 at the beginning of the withdrawin of the pile wires.After the wires have started their respective movements, the current iscut off from the motor 11 at the switch drum 23 at the same time thclutch members 15, 16 are disengaged by he action of the curved disc 26.

According to the embodiment shown in Fig. 2, the pilewire drive isentirely inclependent from the loom drive. The electromotor 11, which isdesigned to operate the pile wires alone, is controlled by a drum switch36 which is driven from a shaft 37 of the loom drive through theintermediary of gear wheels 38, 39. The drum. switch 36 includes twosets of contacts 40, il one of which acts to cutin the motor 11 duringthe laying inof the wires, while the other acts to cutin themotor duringthe withdrawing of the wires, bothsets of contacts operating in such amanner that the motor is cut out of circuit at theend of the respectivewire movements. The driving mechanism of the pile wires is automaticallystopped in the end positions of the wires by means of a brake magnet 42.The system of electric connections of the embodiment according to Fig. 2is more particularly shown in Fig. 5.

The attachment forming the subject-matter of the invention may beapplied to looms with individual drive as well as to looms with groupdrive. v

Having thus described my invention, what I claim as new and desire tosecure by Letters-Patent, is we I I 1. In a loom'for weaving withpile'wires, a common loom drive and an auxiliary drive for operating thepile wires. 1

2. Ina loom for weaving with pile wires, a loom driving mechanism, anauxiliary driving mechanism for operating'the pile wires, and meansactuated by the loom driving mechanism for throwing the auxiliary pilewire driving mechanism in and out.

3. In a loom for weaving with pile wires, a loom drive, an operatingmechanism for the pile wires, an auxiliary electromotor for stopping theoperating mechanism ofthe pile wires at the end of the'movements of ,thepile wires.

i. In a loom for weaving with pile wires, a loom drive, an operatingmechanism for the pile wires, means for transmitting driviiig motionfrom the loom drive to the pile wire operating mechanism, an additionaldrive for the last said mechanism, means controlled by the loom drivefor throwingthe auxiliary drive in at the beginning of the movements ofthe pile wires and cutting it out again as soon as the pile wires havestarted their movements.

5. in a loom for weaving with pile wires, a loomdrive, a pile wireoperating mechanism, means for transmitting driving motion from the loomdrive to the pile wire operating mechanism, an auxiliary GlQOtiIQrmotor, a coupling .mechanisnr between the auxiliary motor and the pilewire operating mechanism, means I between the coupling mechanism and theloom drive forthe latter to actuate the coupling mechanisinsoaS to bethrown in at the beginning of the pile.

wire movements andto be thrown outagain during the continuation of thesemovements.

Ice

6. In a loom for weaving withpile wires,

a loom drive, a pile wire operating mechanism including a main shaft, atoothed wheel gearing between the loom drive and this shaft forimparting rotation to the latter, another gear wheel mounted forrotation on the saio shaft, an electromotor opei'atively connected withthe last-said gear wheel, a clutch member rigidly connected with thegear wheel, another clutch member shiftably mounted on the said mainshaft and adapted to enter into and out ofengagement with the,first-said clutch membenf means between the loom drive and the shiftable clutch member for throwing the clutch members into engagement attheb'eginning of the movements of the pile .wires and thereafterdisengaging them again, and an electric drum switch controlled by theloom drive and adapted to cut the said electromotor in at thelocginningiof the pile wire movements and 'to cut it out after the pilewires have started their movemerits.

JOHANN KEPPELEIR.

actuating

